The transgene contains the reverted wild-type human amyloid protein precursor, APP, under the control of the human platelet derived growth factor, B polypeptide, (PDGFB) promoter. Hemizygous transgenic mice express immunodetectable transgene product in cerebral neurons, with the highest level of expression occurring in the neocortex and hippocampus. ELISA analysis of neocortical and hippocampal tissue revealed approximate total amyloid beta peptides levels and 42 amino acid length amyloid beta peptides levels that were lower than levels found in mice carrying the mutant human amyloid protein precursor transgene Tg(PDGFB-APPSwInd)20Lms.